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Services - Geoid Repository


Regional Models

Switzerland and Liechtenstein (CHGEO2004/CHGEO2004Q)


  Author: U. Marti     Created: 2004    Resp: U. Marti  
      Status: PRIVATE    
Description:
Two Datasets of the Geoid (CHGeo2004) and the Quasi-Geoid (CHGeo2004Q) for Switzerland.It is still the official geoid model to be used in Switzerland and in Liechtenstein. The solution is relative to ETRS89 (GRS80-Ellipsoid) with a resolution > of 30". The height reference system is LHN95. Further information of the Format is included in the Header of the grids. Compared to the previous version (CHGeo98) a stronger weight was put on gravity and GPS/leveling measurements compared to astro-geodetic data and a global model (EGM96) was used as a reference. The model CHGeo2004 is sold for commercial use but can be made available for free for pure scientific purposes.

References:
U. Marti (2007). Comparison of high precision geoid models in Switzerland. In: P. Tregonig, C. Rizos (eds), Dynamic Planet: Monitoring and Understanding a Dynamic Planet with Geodetic and Oceanographic Tools, IAG Symposia Series, vol. 130, pp. 377-382, Springer Verlag.


Switzerland